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 Do you know this console Radio?
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 Return to top of page · Post #: 16 · Written at 9:38:09 PM on 25 February 2014.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5257

AWA early used dark blue painted chassis and Amplion speakers.

I have worked on a few of those including a set that was either a special, or a prototype. Never have I seen a set from the thirties that could disgrace many, sets that came after it. Output was a 6A6 Twin Triode.

They did have a habit of also painting the cans as well and did manufacture under different brand names.They also used transfers that came off & stamped the chassis on the top of the chassis, RH corner in some Hotpoints.

STC chassis was normally a hammer tone gold.


 
 Return to top of page · Post #: 17 · Written at 10:20:20 PM on 25 February 2014.
JamesLaing's Gravatar
 Location: Newcastle, NSW
 Member since 25 February 2014
 Member #: 1516
 Postcount: 30

GTC, It is in the woodgrain pattern where I see that W. Well it looks like a W Smile But it may not mean that its is a W.

The pattern is unique compared to other consoles I have seen.

Sadly the faceplate is all plastic (Is it plastic?) and needs a polish if that can be done of course . The dial behind it is glass but sadly when I disturbed the glass the print started to come off. Behind the glass there is another plastic scale (That is warped) that shows letters through a small window when you turn the dial.

Marcc, For a bit I was thinking it was an AWA, The cans and everything else is not painted. I am going to give it a clean to see if I can find anything that can help ID this Radio. I have seen in many others there is a tube layout but due to this being stored in a shed for many years it has lost all that.


 
 Return to top of page · Post #: 18 · Written at 11:28:16 PM on 25 February 2014.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6688

It is in the woodgrain pattern where I see that W.

Yes, I see that but that's a feature of the cabinetry, not the circuitry.

Sadly the faceplate is all plastic (Is it plastic?) and needs a polish if that can be done of course.

Dunno what that one is made of but I have managed to clear up a badly fogged plastic dial cover on my Krielser Duplex with Autosol liquid car polish.

The dial behind it is glass but sadly when I disturbed the glass the print started to come off.

A common problem with such dials. There are people who can reconstruct dial lettering using computer graphics, but they need a good copy template to work from.


 
 Return to top of page · Post #: 19 · Written at 11:44:31 PM on 25 February 2014.
Brad's avatar
 Administrator
 Location: Naremburn, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 7307

AWA early used dark blue painted chassis and Amplion speakers.

About 20 years ago I heard a rumour that AWA made chassis for many of Reliance's models. I've never been able to verify either way though.

On another note, when I do an image search for Reliance consoles a few models are shown but none with the same shape of the escutcheon, which looks more like the Heinz spaghetti logo.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 20 · Written at 11:55:13 PM on 25 February 2014.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6688

About 20 years ago I heard a rumour that AWA made chassis for many of Reliance's models.

It wouldn't surprise me. Over its life AWA made stuff for many other manufacturers.


 
 Return to top of page · Post #: 21 · Written at 1:11:25 PM on 26 February 2014.
JamesLaing's Gravatar
 Location: Newcastle, NSW
 Member since 25 February 2014
 Member #: 1516
 Postcount: 30

Thanks for all the good information. I am getting a better understanding of these old radios.


 
 Return to top of page · Post #: 22 · Written at 8:52:22 PM on 23 March 2014.
JamesLaing's Gravatar
 Location: Newcastle, NSW
 Member since 25 February 2014
 Member #: 1516
 Postcount: 30

Hi all just thought I would update the progress I have made so far...

I now have the amp section working, but not getting anything out of the tuner yet.

https://www.youtube.com/watch?v=PrZlpov3Qdc.


 
 Return to top of page · Post #: 23 · Written at 5:09:04 PM on 14 May 2014.
JamesLaing's Gravatar
 Location: Newcastle, NSW
 Member since 25 February 2014
 Member #: 1516
 Postcount: 30

Hi all,

Back with some progress, but sadly without a schematic it has not been easy.

After testing and replacing capacitors and resistors I came across a variable 15k power resistor that was open circuit, it seems to be divided into three parts. Which seems to be 3.9k, 3.6k, 7.5k . With that said I am asking what wattage does the replacement resistor needs to be and can I use three separate resistors in series?

Regards,
James


 
 Return to top of page · Post #: 24 · Written at 9:49:02 AM on 24 May 2014.
JamesLaing's Gravatar
 Location: Newcastle, NSW
 Member since 25 February 2014
 Member #: 1516
 Postcount: 30

 
 Return to top of page · Post #: 25 · Written at 4:29:05 PM on 24 May 2014.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6688

I'd lost track of this thread.

Sounds pretty good in the (very dark) videos. I can hear a bit of electronic "hash" in one of them, possibly caused by something in your house, e.g. compact fluorescent bulbs.

Looking back at your mention of a 15K resistor, I'm guessing that's a tapped wire-wound type in the power supply?

If so, then you'd be lucky to find a like-for-like replacement in working order, so using modern individual resistors soldered onto tag strips is the solution. As for wattage required, that's usually determined by knowing the current (P = I*I*R), but a good guess may be 50 watt wire-wound cement types.


 
 Return to top of page · Post #: 26 · Written at 4:21:38 PM on 25 May 2014.
JamesLaing's Gravatar
 Location: Newcastle, NSW
 Member since 25 February 2014
 Member #: 1516
 Postcount: 30

Yes it does seem to be interference, Being in units I suspect it is the CFL and the smoke detector that is below plus my own above the radio.

I have since moved the radio and using an outside antenna source with much better results.

The 15k resistor is on the other side of the chassis which is linked to an IF or two and the 6A7 and the 6D6.. I currently have a series of 5 watt resistors which appear to be ok, not getting too hot as I can hold my finger on them.

The problem I have is finding the right type of resistors , I have found some on eBay from china but I am not sure I should trust those?


 
 Return to top of page · Post #: 27 · Written at 4:54:44 PM on 25 May 2014.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6688

EVATCO in QLD sells the 10 watt cement type, but in a limited range of resistances if their new format website is correct:

http://evatco.com.au/product-list/resisters/resister-cement/.

I've had no problem with high wattage resistors I've bought on eBay from China . That's probably where most of them are made anyway!

As I recall from school, 2 watts of heat is too hot to touch, so I guess yours are running below 2 watts of dissipation.

PS: Your videos describe the unit as a radiogram, but it lacks a gramophone so it's not a radiogram. It's a console set.


 
 Return to top of page · Post #: 28 · Written at 7:40:17 PM on 25 May 2014.
Brad's avatar
 Administrator
 Location: Naremburn, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 7307

As I recall from school, 2 watts of heat is too hot to touch, so I guess yours are running below 2 watts of dissipation.

It is. When we used to fire up banks of resistors at tech, when I was doing my trade course, the resistors would get so hot on their mountings they could almost boil water. This was all at extra-low voltage too 24/41.5 volts.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 29 · Written at 10:22:12 PM on 25 May 2014.
JamesLaing's Gravatar
 Location: Newcastle, NSW
 Member since 25 February 2014
 Member #: 1516
 Postcount: 30

Thanks for information GTC, But sadly that site does not have the ones I seem to need.

The ones I have in mind are these on eBay.

http://www.ebay.com.au/itm/390836993210?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649.
http://www.ebay.com.au/itm/390836993280?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649.
http://www.ebay.com.au/itm/390836993475?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649.

Then put them in series to make 15k then connect them at the needed points to work in the radio. I intend on bolting them to the chassis.

I have renamed my videos to console Smile Strange the lighting seems much brighter in person, I will have to increase the lighting somehow in future...


 
 Return to top of page · Post #: 30 · Written at 10:44:52 PM on 25 May 2014.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6688

If the 5 watt resistors are doing the job, then no need to buy 50 watt ones. I only mentioned them to cover all bases as I don't have the applicable current value.


 
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